CZ2004584A3 - Safety device of toggle for toggle connections of conveyor pans of a chain scraper conveyor or for conveyor troughs and toggle pocket - Google Patents

Abstract

The subject matter of the present invention relates to toggle retainers for toggle connections of conveyor pans of a chain scraper conveyor or guide troughs of a mining machine guide used in underground mining operations, with laterally open toggle pockets into which toggles 50 can be inserted with play, which toggles have toggle heads 51 that are connected in one piece with one another, with at least one of said toggle heads having a bolt tongue 54. Toggle retainer 10 can be affixed to one of toggle pockets 2 by extending under wall projections 8 and is designed so as to have multiple parts, with a bolt element 20, in the assembled state, extending over bolt tongue 54 and under wall projections 8. To ensure a secure placement of the toggle in the toggle pockets, a filler element 30 can be form-fittingly inserted between bolt element 20 and back wall 9 of the toggle pocket and connected to bolt element 20 via a screw joint 40 (FIG. 1).

Description

Gag locking mechanism for glue joints of scraper conveyor trough parts and gag pocket

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention the tongue locking device is attachable in one of the pockets by sliding under the wall protrusions at the transition of the housing portion for receiving the head of the gag into the mounting part for the gag locking mechanism, being multi-piece and comprising a locking member in assembled state firmly overlapping the tongue and pushed under the wall projections. The invention further relates to a gag pocket which is configured to receive a gag locking device constructed in accordance with the invention.

BACKGROUND OF THE INVENTION

In underground mining, it is known to connect the scraper conveyor troughs or the guiding components of the mining machine guides firmly to the tension, but horizontally and vertically angularly movable, by means of gags which are inserted into laterally open pockets which are welded or cast on the side walls of the troughs or guideways The bolts comprise heads connected to each other by a shank, by means of which tensile forces are transmitted. These bolts are secured in the pockets by means of suitable locking devices, and there are various designs of such locking devices in the prior art.

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9 99 9 9 99 99999 gag mechanism. In particular, it has proved to be possible to provide locking tongues on both sides of the gag heads so that the gags can be secured in the pockets against falling out by means of these locking tongues. In this case, one of the two locking tongues is usually fastened in a notch formed in one of the pockets, and only the opposite head of the gag is secured in the corresponding pocket by a releasable locking device. The invention relates to these corresponding releasable bolt locking devices.

Such a locking device is known, for example, from DE 100 11 288 A1. In this solution, the locking device consists of a locking plate which is provided at both ends with clamping sleeves for fastening the locking plate in the deformation of one or both clamping sleeves between semi-circular openings facing each other and facing each other on the wall projections of the transition section. mounting the gag head into the mounting portion of the receiving portion. In the assembled state, the locking plate extends beyond the locking tongue on one of the heads of the gag and at the same time is pushed under the wall projections. For mounting or dismounting, holes are provided in the locking plate for insertion of the tool in order to be able to pivot the locking plate from its built-in position when the collets are deformed.

A similar bolt locking device is known from DE 36 28 207 C2. However, in this solution, the locking plate is provided with a through hole only on one side, so that the clamping pin can be driven into the locking plate by the corresponding holes in the wall projections. The other end is fastened in a recess in the lateral sides under the opposite wall projection.

Finally, it is known, for example, from DE 30 12 884 to fasten a gag which is provided with a locking tongue on only one of its heads, ····

3 · · ··· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · The gag is inserted into both pockets axially movably and is inserted in one of the pockets by its locking tongue into the respective notch in the back of the pocket and at the same time it is inserted in the notch on the axial delimiting sides of the blocking pocket. All axial movements are then prevented by means of a locking bracket which is inserted between the back side of the recess for receiving the head of the gag and the back of the head of the gag without any locking tongue, the gag being secured by its head in the corresponding recess against falling out . The retaining bracket has one retaining arm which can be mounted on the side of the channel sections with a screw. The notch for one of the two heads of the gasket limits the angular mobility of the gutter sections connected to each other by the gasket joint.

SUMMARY OF THE INVENTION

SUMMARY OF THE INVENTION It is an object of the present invention to provide a gag locking device that allows the gag to be securely fastened in pockets and is useful with gags that promote large angular deflection of adjacent trough or guide members relative to each other.

This and other tasks are accomplished by a gag locking device for glue joints of scraper conveyor troughs or mining guide guides with laterally open pockets for gags having loosely-threaded gags having one piece connected to one another, at least one of which is provided with a locking tongue, wherein the gag securing device is mountable in one of the pockets by sliding under the wall projections at the transition of the housing portion for receiving the gag head into the gag securing mounting portion, being multi-piece and comprising a locking portion in the assembled state · · · · ·

4 shows a tongue and pushed beneath the wall projections according to the invention, which is characterized in that it comprises a filler part which is fit-fit between the locking part and the rear wall of the mounting part and can be connected to the locking part by a screw connection.

The bolt locking device according to the invention therefore comprises one infill panel and an interlocking member, the interlocking member being insertable into the mounting portion and subsequently displaceable in the axial direction until it simultaneously overlaps the interlocking tongue and slips under the wall projections in its locking position. The axial securing of the locking part is then carried out by means of a filling part which fills the mounting part of the corresponding pocket with a shape fit. The screw connection between the locking part and the filling part serves exclusively to prevent the release of both parts. The axial forces are absorbed in the locking device of the gag according to the invention by the mutual matching of the parts to be joined and transmitted to the back wall of the pocket.

According to a preferred embodiment, the locking part comprises a transverse rib which, in the assembled state, bears on the front projections of its wall parts on the wall projections of the respective pocket and on the rear sides of its wall parts abuts the filling part to secure the locking part against displacement in both axial directions. The locking piece is preferably provided with a locking projection between the wall portions of the transverse rib which axially protrudes against them to cover the locking tongue in one of the heads. Furthermore, the locking part can advantageously be provided on both sides of the locking projection with support ribs on the underside, the free upper sides of which extend in front of the wall portions of the transverse rib extend below the wall projections. In the assembled state, the support ribs are therefore inserted between the undersides of the wall portions and the bottom of the pocket and fixed laterally to both sides. At the same time, the support ribs facilitate axial axial support.

5 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · In order to support the locking part by means of a filler part with mutual fit, it is particularly advantageous if the transverse rib is provided with open, preferably semicircular recesses for inserting the nut for the screw connection, which recess should allow rotation of the nut by means of a suitable tool.

According to a particularly preferred embodiment, the locking part comprises, on the underside, a recess, preferably with an open edge, which is arranged transversely to the locking projection and which extends below the wall portions of the transverse rib and which is intended to receive the head of the head screw. It is particularly advantageous if the recess is designed to receive a T-head bolt such that the bolt can be fastened to the locking member in a simple manner by sliding its head into a notch in the wall portions of the transverse rib without the cross-section of the locking member having to weaken excessively. which could lead to breakages within the locking member.

The padding may advantageously be provided with a support rib, on the front side of which a support strip is provided with a through hole for a T-head screw shank. The support strip is preferably designed to engage a recess in the locking part with a matching shape to these of the parts to be joined and in the assembled state at least partially abut the abutment collar in the recess. All axial forces are then absorbed by the wall portions of the transverse rib and the support bar and guided into the rear wall of the mounting portion of the gag pocket. For mounting a head screw or a T-head screw, it is particularly advantageous if its mounting is limited by the bottom rib of the locking part, the abutment shoulders under the wall portions of the transverse rib and the foot rib of the filling part. The T-head bolt is attached to the locking part after the locking part has been axially moved into its • · · ·

• Locking positions, before; before the padding fills the remaining space in the mounting portion of the gag pocket.

In order to achieve maximum angular mobility of the bolt, it is particularly advantageous if the underside of the locking protrusion rises toward the front wall of the locking protrusion and / or the front wall of the locking protrusion is preferably provided with a circular arc-shaped depression. By correspondingly forming the heads of the gags or the locking projections with the end of the heads in the form of a circular arc and the locking tongues formed in the shape of a wedge, optimum cooperation between the gag locking mechanism and the gag heads is guaranteed.

A particular embodiment of the gag pockets for the gag securing device of the invention for a rigid tensile connection and an angularly movable connection of trough or guide parts comprises L-shaped wall projections comprising an axially extending detent arm and a retaining rib arranged perpendicular thereto. pointing down to the bottom of the gag pocket. This retaining rib additionally reinforces the locking ribs cast on the side walls of the gag pocket, so that by means of the wall projections, the gags can be secured by means of a locking device even when the two gutter parts are heavily deflected.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and embodiments of the invention result from the following description of a preferred exemplary embodiment shown schematically in the accompanying drawings, in which Fig. 1 shows in side view two pockets with inserted gag and mounted gag securing device; Fig. 2 is a section along II-II in Fig. 1; Fig. 3 is a sectional view along the line ΙΙΙ-ΙΙΓ of Fig. 1; Fig. 4 is a sectional view along the line IV-IV in Fig. 1; 1, FIG. 5 is a sectional view in detail of the gag locking device, FIG. 6 is a sectional view along the line VI-VI of FIG. 5, and FIG. 7 is a view in the direction of arrow VII in FIG. 5.

DETAILED DESCRIPTION OF THE INVENTION

Referring now to Figure 1, there is shown a seam joint 100 intended for not shown trough sections of a scraper conveyor used in underground mining or for guide guides of mining machines used in underground mining. The glue joint 100 comprises two pockets 12, which are either welded as separate parts to the side walls of the trough or guide parts or can be cast directly on these side walls or the plow guide. Both pockets 7, 2 have a receiving portion 3 for receiving the shaft 52 of the gag 50 and a receiving portion 4 or the receiving portion 5 for receiving the head 5 of the gag 50, the receiving portions 3 for receiving the shaft 52 of the gag 50. . For tensile and angularly movable fastening of two adjacent trough or guide parts, a removable bolt 50 comprising two heads 51 connected to one part by means of an axially extending shaft 52 is inserted into the receiving portions 3, 4, 5 of the pockets 7, 2. The gag 50 is formed symmetrically with respect to the center of its shank 52 and both of its heads 51 have a locking tongue 54 at their end 53 facing away from the shank 52, which can be seen particularly in Fig. 2. In the figures to the right, it engages in a locking recess 6 (FIG. 2) formed as a notch on the back of the pocket 6, the locking recess 6 being covered by a locking extension 6A cast on the pocket 1 which is curved into a circular arc at its front. to secure the right head 51 with the locking element fixedly in the pocket 7 in the locked position against falling out.

· • · * *

The head 51 located in FIGS. 1 to 3 on the left is secured against falling out of the pocket 2 by a detachable locking device 10 according to the invention. The locking device 10, which will be described in more detail later, is multi-part and comprises a locking part 20 and a filling part 30 and, when assembled, is mounted in a mounting part 7 which is open towards the receiving part by means of a through hole delimited laterally. The wall protrusions 8 formed on the two side delimiting walls of the pocket 2 at the transition between the parts 5 and 7 comprise a retaining rib 8B reaching down to the bottom of the receiving opening and a locking rib 8A projecting rearwardly relative to the retaining rib 8B. under the locking rib 8A is in the installed state of the locking member 20 foisted bottom ribs 21 on the locking member 20 so that the upper sides of the bottom ¹ 21 of the ribs 21 abut the lower side of the locking ribs 8A, as shown in FIGS. 3 and 4.

The construction of the locking part 20 preferably made as a forging and the filling part 30 preferably also as a forging will be explained with reference to FIGS. 5 to 7. The locking part 20 has a transverse rib 22 which forms its rear side and which is on both sides. the sides of the open-ended semicircular recess 23 are provided with wall portions 22A which, in the installed state, abut with their rear sides directly on the front wall of the support rib 31 of the filler panel 30. The support rib 31 of the filler panel 30 is provided with a rounded open edge 32 which, together with the semicircular recess 23, delimits the receptacle for insertion of the nut 41 of the screw connection 40 intended to connect the locking part 20 to the infill panel 30, which can be tightened / disengaged by the tool without abutting the side boundary walls of the semicircular recess 23; 3. The infill panel 30 is provided approximately in the center with a support rail 32.

extending axially beyond the support rib 31, which is preferably designed for fit-fit insertion into the semicircular recess 23 and is provided with a through hole 33 for the shaft 42 of the T-head screw 43, the support rail 32 preferably abutting on its circumference on the abutment collar 24 forming the bottom of the semicircular recess 23, so that the support strip 32 is supported against tilting against the bottom of the pocket 2 by means of the front foot part 25 of the locking part 20. The locking member 20 further comprises a locking protrusion 26 which extends axially between the two bottom ribs 21, which are offset downwardly and laterally thereto, and which has a circular arc at its front 26 '. The bottom 26 'of the locking protrusion 26 rises obliquely to the recessed front 26'. The locking protrusion 26, when the locking member 20 is in its forwardly engaged locking position, extends beyond the locking tongue 54 disposed in the pocket 2, as seen in particular in FIG. 2.

The locking part 20 and the filling part 30 are connected to each other by a screw connection 40, the screw 43 being formed with a T-shaped head 44 which extends on both sides of the shank 42 under the wall portions 22A of the transverse rib 22. the axial distribution of the locking protrusion 26 and intended to receive the head 44 of the bolt 43 is limited by the rear side of the heel part 25, the lower bounding surfaces of the wall portions 22A spaced apart from the bottom and the central support rib 35 on the front side of the infill part 30. it itself rests on the sides of the support rib 35 with the support ribs 36 with a V-shaped cross section on the bottom of the pocket 2. Thus, the filler panel 30 fits on one side to the bottom of the pocket 2 and, on the other hand, to the abutment collar 24 of the blocking piece 20. The filler panel 30, as shown in particular in Figures 1 and 2, simultaneously fills the space between 9_ mounting part of the 7th pocket • * * · · · ·····

2. with a form fit such that the locking piece 20 cannot move from its locked position axially to the rear wall 9.

To mount the locking device 10, the locking member 20 is first inserted into the mounting portion 10, with the rear sides of the wall portions 22A of the transverse rib 22 sliding along the rear wall 9 of the mounting portion 7. Once the underside of the locking member 20 abuts the bottom of the pocket 2, the locking part 20 is moved in the axial direction until the locking projection 26 overlaps the locking tongue 54 on the bolt 50 and at the same time the two bottom ribs 21 slide under the locking arms 8A of the wall projections 8 and between them and the bottom of the pocket 2. Then, the bolt 43 of the bolt connection 40 is inserted from the rear into the open-edge recess at the back of the locking member 20 so that its head 44 is arranged transversely to the longitudinal axis of the bolt 50. The space remaining between the back of the locking member 20 and the rear wall 9 is then from above, it inserts a locking member 20, wherein the support strip 32 surrounds the shank 42 of the screw 43 around and the support rib 35 prevents rotation of the head 44 in the recess. Then the nut 41 is screwed onto the threaded part of the screw 43 and tightened with a suitable tool. The T-shaped head 44 (FIG. 6) of the screw 43 is non-rotatably mounted between the locking part 20 and the filling part 30 and the nut 41 can be tightened, whereby the locking part 20 and the filling part 30 are firmly connected. The locking device 10 inserted into the mounting part 7 of the pocket 2 then secures the gag 50 in both pockets 7, 2 because the locking tongue 54 of the gag 50 is firmly covered. The disassembly is carried out in reverse order and after loosening the screw connection, the filling part 30 is first removed from the mounting part 7. Then the locking part 20 is moved axially along the rear wall 9 until it can also be removed from the mounting part 7. The gag 50 is then removed by lifting its head 51 in the pocket 2 laterally from the opening in the pocket 2 and rotating so that the second locking tongue 54 can be pulled out of the locking recess 6.

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From the above description, a number of variations are apparent to the skilled person, but are within the scope of protection of the claims. The locking device according to the invention can also be used with gags having a locking tongue on only one side. The screw connection may then have a head otherwise formed on the threaded shaft. The support rail can then be provided with support forks instead of a through hole, which engage correspondingly formed slots or slots in the locking part.

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PATENT CLAIMS

Claims (10)

PATENT CLAIMS - -jr * 1. A gag locking device for glue joints of scraper conveyor troughs or duct guiding parts with laterally open pockets for gags having loose-fit gags having one piece connected to one another, at least one of which is provided with a locking tongue wherein the gag securing device (10) is attachable in one of the pockets (2) by sliding under the wall protrusions (8) at the transition of the housing portion (5) for receiving the gag head into the gag securing device (10) mounting portion (7), formed in a multi-part construction and comprising a locking part (20) in the assembled state firmly overlapping the locking tongue and slid beneath the wall projections, characterized in that it comprises a filling part (30) which can be inserted in shape between the locking part (20) and the rear wall ( 9) of the mounting part (7) and with the locking part (20) is connectable by means of a mounting part (20) by screw connection (40). Locking device according to claim 1, characterized in that the locking part (20) comprises a transverse rib (22) which, in the assembled state, bears against the front projections of its side portions (22A) on the wall projections (8) and the rear sides of its lateral portions. (22A) abuts the infill panel (30). Locking device according to claim 1 or 2, characterized in that the locking part (20) preferably comprises between the wall parts (22A) a locking protrusion (26) projecting axially relative thereto for firmly covering the locking tongue on the gag. Locking device according to claim 3, characterized in that the locking part (20) is provided on both sides of the locking projection (26) on the underside with bottom ribs (21) whose free upper sides 99 99 99 99 ·· 99 ♦ 9 9 9 · 9 9 99 9 9 9 9 9,999,999,999 9,999,999 9999 9999 99 9 99 9 • 9999 (21 ') located in front of the wall portions (22A) extend below the wall protrusions (8AJ). Locking device according to claim 3 or 4, characterized in that the locking part (20) comprises on the underside of a recess preferably with an open edge, which extends below the wall portions (22A) arranged transversely to the locking projection (26) for mounting the head (44) of the screw (43). Locking device according to claim 5, characterized in that the recess is designed for the fit of a screw (43) provided with a T-shaped head (44) in a shape-adapted manner. Locking device according to one of Claims 1 to 6, characterized in that the transverse rib (22) is preferably provided with a semi-circular recess (23) with an open edge for receiving the nut (41) of the screw connection (40). Locking device according to one of Claims 1 to 7, characterized in that the filling part (30) is provided with a support rib (31), on the front side of which a support strip (32) is provided with a through hole (33). Locking device according to claim 8, characterized in that the support strip (32) is designed for advantageously shaped fit in the recess (23) on the locking part (20) and / or in the assembled state at least partially abuts the abutment collar (20). 24) in the recess (23). Locking device according to one of Claims 5 to 9, characterized in that the support for the head (44) of the screw (43) is delimited by the foot part (25) of the locking part (20) by abutment shoulders underneath. 44 ·· ««